Snack food



FIG. 1 is a top plan view of a snack food showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a side elevational view thereof, which is symmetrical about a vertical axis thereof;

FIG. 4 is a cross-sectional view thereof, taken along line 4—4 in FIG. 1; and,

FIG. 5 is a perspective view thereof. 

The ornamental design for a snack food, as shown and described. 